Merge tag 'docs-5.15' of git://git.lwn.net/linux
[linux-2.6-microblaze.git] / drivers / media / dvb-frontends / lnbh29.h
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Driver for LNB supply and control IC STMicroelectronics LNBH29
4  *
5  * Copyright (c) 2018 Socionext Inc.
6  */
7
8 #ifndef LNBH29_H
9 #define LNBH29_H
10
11 #include <linux/i2c.h>
12 #include <linux/dvb/frontend.h>
13
14 /* Using very low E.S.R. capacitors or ceramic caps */
15 #define LNBH29_DATA_COMP    BIT(3)
16
17 struct lnbh29_config {
18         u8 i2c_address;
19         u8 data_config;
20 };
21
22 #if IS_REACHABLE(CONFIG_DVB_LNBH29)
23 struct dvb_frontend *lnbh29_attach(struct dvb_frontend *fe,
24                                    struct lnbh29_config *cfg,
25                                    struct i2c_adapter *i2c);
26 #else
27 static inline struct dvb_frontend *lnbh29_attach(struct dvb_frontend *fe,
28                                                  struct lnbh29_config *cfg,
29                                                  struct i2c_adapter *i2c)
30 {
31         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
32         return NULL;
33 }
34 #endif
35
36 #endif